Support for spinning-spindles



(N0 Model.)

J. S. RICHARDSON. SUPPORT PoR SPINNING SPINDLPS.

No. 403,862. Patented May 21 1889.

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V-To all whom it may concern:

vUNITED STATES PATENT OFFICE.

JOHN S. RICHARDSON, OF LOWELL, ASSIGNOR ,OF ONE-HALF TO GEORGE DRAPER & SONS, OF HOPEDALE, MASSACHUSETTS.

SUPPORT FOR SPINNING-SPINDLES.

SPECIFICATION forming part of Letters Patent No. 403,862, dated May 21, 1889.

Application tiled August 25, 1888.

Be it known that I, JOHN S. RICHARDSON, of Lowell, in the county of Middlesex and State of Massachusetts, have invented an Improvement in Supports for Spinning-Spindles, of which the following description, in connection with the accompanying drawing, is a specification, like letters on the drawing representing like parts.

This invention has for its object to improve the construction of spindle-bearings, whereby the lower end of the spindle may have the necessary freedom of mot-ion to enable it to become self-adapting to the load or so that the step may m'ove with the lower end of a rapidly-rotating and unequally-loaded spindle.

Prior to this invent-ion a step supporting the lower end of a spindle has been supported loosely upon the upper end of a spiral spring set loosely into the bottom of a supportingcase, the said spring, besides being compressed and shortened by increase in weight of the yarn load on the spindle, also acting as a sort of cushion between the outside of the spindlestep and the inner wall of the bolster-case; but such spring,not being secured at one end with relation to the supporting-case, and not having the step secured to it, cannot. act normally to keep the step substantially central in the supporting-case an d outof contact with the inner side walls thereof.

In my efforts to provide a spindle-bolster having a rigid bolster-bearing' with a laterally-movable step which should normally occupy a substantially central position in the supporting case or holder containing the bolster-bearing I have combined with the said case a peculiar step-holder, the same consisting, as herein represented, of a rather stiff and thus quick-acting spiral spring,vwhich at or near its upper end, or at a point somewhat distant from its lower end, is ixed with relation to the supporting-case, the lower portion of the said spring, extended downwardly in the supporting-case, being externally of less diameter than the interior of the supportingcase, and'having connected to it the step in which the foot of the spindle rotates, so that the said step is suspended by the step-holder, leaving the step, with the lower end of the Serial No. 283,750. (No model.)

step-holder, free to move laterally with the foot of the spindle, the step-holder, owing to its connection to the supporting-case, as described, having a normal tendency to place the step centrally in the space in the supporting-case, the said step-holder also acting,in asmuch as the step is connected to its lower portion, to suspend the step and permit it to yield vertically, if required, the descent of the step, due to the weight of the spindle and yarn load thereon, extending or elongating the spring rather than compressing it, as when the step rests on the upper end ol' the spring.

My invention consists, essentially, in the combination, with a sleeve-whirl spindle, a supporting case or holder, and a rigid bolsterbearing, of an independent elastic step-holder separated from the bolster, but held at or near its upper end in the said case, and a step connected to and carried by the lower freely-movable portion of the said step-holder, whereby the said step is enabled to respond quickly to change of position of the lower end of the spindle, the step-holder, by the normal tendency of its lower end to assume a central position in the supporting-case, quickly placing the stepiin its normal central position in the supporting-case.

Other features of myinvention will be hereinafter described, and pointed out in the claims at the end of the specilication.

The drawing in vertical section shows a spindle-bearing embodying my invention.

The rail A sustains a supporting case or holder, B, it having a flange, B', to rest on the said rail, and, as herein shown, the said supporting-case has a screw-plug, B5, by which to close its lower end. The spindle C has attached to it in usual manner a sleeve-whirl, C. The rigid bolster-bearing D is herein shown as composed of wire twisted into spiral form, the said bolster-bearing fitting snugly into that part of the supporting case or holder which is extended into the sleeve-Whirl, the bolster-bearing D constituting a rigid lateral bearing for the said spindle. Below the bolster-bearing D the supporting-case has attached to it by solder or in other usual manner and extended downwardly therein a yielding step-holder, b, which serves to suspend the step f in a yielding manner, the said IOO VIo

abling the upper part of the spindle carryingthe bobbin to run with great steadiness.

The step-holder h, composed of spring-wire, is of such length and the wire is of such temper as to permit the step-holder to yield or elongate somewhat in the direction of its length while the spindle is running and the load thereon varies, the said spring, however,

acting quickly to not only keep the spindle normally up to its work in a yielding manner, but, what is also of great importance, keeps the step substantially central in the surrounding supporting-case and from contact with the said case, so that the step is free to readily be moved laterally with the lower end of the spindle as the load on the spindle requires.

The spindle is shown as provided with an annular groove, as a, which is entered by a locking pin or stud, e, (shown extended through the supporting-case,) the said pin and groove serving to prevent the lifting of the spindle from the supporting-case when dofng the bobbin.

Herein it willbe'noticed that the step-holder h is entirely independent of and detached from the bolster-bearing D, leaving an oilspace, between. By separating the bolsterbearing and step-holder either can be removed When worn and be renewed without disturbing the other, which is a point of economy, and either may be made of any desired thickness. I claim.-

1. The combination,with a sleeve-whirl spinf dle, a supporting case or holder, andi a rigid bolster-bearing therein, of an independent v elastic step-holder separated from thev bolster,

but securely held at or near its upper end within the said case, and a step connected to and carried by the lower freely-movable portion of the said step-holder, the said step-holder normally acting to keep the step in the desired or central position in the said case, substantially as described.

2. The combination, with the sleeve-whirl spindle, the supporting case or holder, and the rigid bolster-bearing, of the elastic stepholder h, firmly held at or near its upper end in the said supporting-case, and step f therein and suspended bythe said step-holder, the step-holder being free to yield both laterally and vertically Within the said supporting-case, substantially as described.

3. The combination,w ith a sleeve-whirl spindle, a supporting case or holder, and av bolster-bearing therein, of an independent elastic step-holder separated from the bolster, but securely held at or near its upper end within the said case or holder, and a step connected to and ,carried by the lower freely-movable portion of the said step-holdeigthe said stepholder normally acting to keep the step in substantially central position in the said case, substantially as described.

4. The combination,with a sleeve-whirl spindle, a supporting case or holder, anda bolster-bearing therein, and a laterally-movable step, of a step-holder composed of wire coiled to form a spring, the upper end of the said step-holder being securely held within said supporting case or holder and being connected at its lower end to the said step to suspend it in the case,whereby the step, besides being free to 'yield laterally, is also enabled to yield vertically, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JOHN s. RICHARDSON.

Witnesses:

ALBERT M. MOORE, MYRTIE C. BEALs. 

